Shanghai Daoqin Plastics Co., Ltd.

实验室 commonly used pipe/tube main/primary use plastics and 不锈钢 made formed, 玻璃离心 tube/pipe is can in high speed or ultra- speed machine upper use, therefore in 实验室 in application very less. plastics tube/pipe commonly used material has polyethylene (PE) （PE）, polycarbonate (PC) （PC）, polypropylene (PP) （PP） and other, its in PP tube/pipe property can relatively good. plastics tube/pipe advantages significantly, is is transparent （ or semi transparent ）, hardness small, can use method 取出梯 degree. disadvantages is easy deformation, resistant has machine solvent agent property 差, use lifespan short. PP(polypropyiene, polypropylene (PP)) semi transparent. chemical and temperature degree property can stability, low temperature lower 发脆. need in 4℃ below/following 离心. PA(polyallomer, polypropylene (PP) and polyethylene (PE) polymer) semi transparent. chemical property most stability, high temperature easy soft. CAB(celluloseacetobutyrate, acid ester fiber 素)LH is 0－15℃ lower use, HT is 20－40℃ lower use. transparent. can used for relatively dilute acid, alkali, salt. 但当pH=8 above, has machine solvent agent, heavy salt 如CsCl时仅 has conditions lower can use. suitable for and 蔗糖梯 degree. PC(polycarbonate, polycarbonate (PC)): transparent degree good, hardness large, can high temperature resistance 消毒. resistant strong/high acid strong/high alkali and certain has machine solvent agent 如酒精, 油, MDSO. can 不装满. main/primary used for 5万rpm above 离心. PCR(polyclear, ultra- transparent) and PC versus 似, ratio PC more hard PE(polyethylene, polyethylene (PE))不 transparent. for ketone, acid, salt acid and other stability. high temperature easy soft, must 装满. PS(polystyrol, polystyrene (PS)) transparent hard. for large more water solvent liquid stability, can many has machine material, one-time property use. more used for low speed 离心. PF(polyflor, poly fluorine)-100℃－140℃ lower use, semi transparent. 不锈钢 can resistant hot, resistant chemical 腐蚀, can high pressure 消毒, relatively heavy, relatively 贵. CN tube/pipe: relatively soft, transparent, resistant strong/high acid strong/high alkali and certain has machine solvent agent, can high pressure 消毒. combined 于蔗糖, and other density degree 离心. transparent, 利于收集.